RE: Use of CURRENT_DATE vs SYSDATE and DST

From: Kerber, Andrew W. <Andrew.Kerber_at_umb.com>
Date: Thu, 22 Mar 2007 14:40:25 -0500
Message-ID: <D40740337A3B524FA81DB598D2D7EBB306F0EE64@x6009a.umb.corp.umb.com>

Don't blame Oracle too quickly, it might have something to do with your hardware.  

-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Mercadante, Thomas F (LABOR)
Sent: Thursday, March 22, 2007 2:19 PM
To: oracle-l_at_freelists.org
Subject: Use of CURRENT_DATE vs SYSDATE and DST  

All,  

I had a developer ask me a question today that I missed in our discussion regarding the DST patches. He showed me where:  

SQL> select to_char(sysdate,'mm/dd/yyyy hh24:mi:ss'),

  2 to_char(current_date,'mm/dd/yyyy hh24:mi:ss')

  3 from dual;  

Sysdate                   Current Date

----------------------------- -----------------------------

03/22/2007 15:14:24 03/22/2007 16:14:25    

So after patching my database with the current DST patch (and not patching the client), the value of CURRENT_DATE is incorrect - it is 15:14 right now. And what the heck does CURRENT_DATE return? One hour ahead? I would expect it to be one hour behind (at 14:14) until the end of March.  

Does this make sense? And when I applied the client patches, the value of CURRENT_DATE did not change???  

I told my developer to not use CURRENT_DATE - stick to SYSDATE.

Tom  

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Received on Thu Mar 22 2007 - 14:40:25 CDT